baber/WOPTO huggingface dataset:
Patent CA-2008154-A1 (CA)
Inventor: AMPLEMAN GUY
IPC: C07C247/04
Filed: 1990-01-19
Abstract: Glycidyl azide polymer is a hydroxy-terminated aliphatic polyether containing alkyl azide groups.  Such a polymer could be used as a plasticizer in composite explosives, gun and rocket propellants.  However, the hydroxyl groups of the polymer react with the isocyanate of the curing agent, thereby eliminating any possible plasticizing effect.  This problem is overcome by producing a diazido-terminated glycidyl azide polymer without terminal hydroxyl groups.  This useful polymer is produced by reacting polyepichlorohydrin with p-toluenesulfonyl chloride in pyridine, and reacting the resulting tosylated polyepichlorohydrin with sodium azide in dimethylformamide.
Patent CA-2009811-A1 (CA)
Title: Dispensing casing for solidified products
Inventor: ROGER CARINE
IPC: A45D40/16
Filed: 1990-02-12
Abstract: ABSTRACT OF THE DISCLOSURE     A despensing casing for solidified products (22), comprising a tubular body (1) provided, substantially in its median portion. with a piston (9) including actuation means (17, 171) accessible from the outside of body (1) closed by a removable cover (5), said piston (9) defining an opening (11a) for the introduction of the product (22) filling at least an inner chamber (2) of said body, and closing means (17a) being provided for preventing the product (22) from flowing out after having filled the chamber (2).     Fig. 3
Patent CA-2010390-A1 (CA)
Title: Open transmission line locating system
Inventor: HARMAN ROBERT K
IPC: G08B13/24
Filed: 1990-02-20
Abstract: ABSTRACT OF THE DISCLOSURE An open transmission line system for locating mobile entities along a defined pathway utilizing a single open transmission line routed along the defined pathway is disclosed. In order to determine location within a length of open transmission line an electrically alterable inductance conductor is utilized as one of the transmission line conductors. The open transmission line may be a two wire line, a leaky coaxial cable or a leaky waveguide which guides an electromagnetic field along its length with a portion of the field extending into the space surrounding the transmission line. The electrically alterable inductance conductor has a helically wound conductor around a magnetically permeable core. The helically wound outer conductor is made from a number of parallel low resistance wires. The core is made from a number of very small diameter insulated high resistance wires made from magnetic material. A low frequency current passing through the outer conductor winding drives the magnetic core around its hysteresis curve thereby varying the incremental inductance of the conductor affecting the radio frequency signals propagating along the transmission line. The varying incremental inductance alters the propagation properties of the transmission line including the velocity of propagation and the radial decay rate of the external electromagnetic field. In this way the low frequency current in the variable inductance conductor modulates radio frequency signals coupling to the open transmission line. The longitudinal distance that the signal propagates along the transmission line can be determined from the phase modulation imposed by the variable inductance conductor. The radial range from the transmission line can be determined from the amplitude modulation imposed by the variable inductance conductor. The combination of phase and amplitude modulation imposed by the variable inductance conductor element of the open transmission line facilitates the location of a transmitter or receiver relative to the transmission line simultaneous with the conventional usage of the open transmission line as a means of communication. In another application the electromagnetic field of a commercial radio or TV station is used to detect and locate a target along the length of a variable velocity open transmission line. The target may, in fact, be a person and the resulting system can be used as an intrusion detector.
Patent CA-2010992-A1 (CA)
Title: Biphenyl derivatives
Inventor: IWASAKI TAMEO
IPC: C07D407/04
Filed: 1990-02-27
Abstract: ABSTRACT    The present invention is directed to a novel biphenyl derivative of the formula:                             wherein Ring A is a substituted or unsubstituted sulfur-containing or oxygen-containing heteromonocyclic ring; Ring B is a ring of the formula:                       or     each of R1 to R3 is a hydrogen atom, a halogen atom or a lower alkoxy group, or R1 is a hydrogen atom, and R2 and R3 are combined together to form a lower alkylenedioxy group; R4 is a lower alkyl group which may have a substituent selected from a lower alkoxy group and a lower alkoxycarbonyl group; Y is a methylene group or a carbonyl group, and a pharmaceutically acceptable salt thereof.  Said derivatives and pharmaceutically acceptable salts thereof are useful as a therapeutic or prophylactic agent for hepatic diseases.
Patent CA-2011405-A1 (CA)
Title: Pressure-reducing, noise-abating control valve
Inventor: RAFTIS SPIROS G
IPC: F16K7/06
Filed: 1990-03-02
Abstract: A control valve has a plurality of internal flow channels operative for reducing the pressure and attenuating the noise of pressurized fluids being con-veyed along a pipe line. An entrance well within the valve minimizes excess turbulence.
Patent CA-2013003-A1 (CA)
Title: Multi-use trailer
Inventor: FORSTER HAROLD
IPC: B60P3/10
Filed: 1990-03-23
Abstract: ABSTRACT OF THE DISCLOSURE         Conventional boat trailers, horse trailers and small cargo trailers are basically single use devices.  A simple, multi-use trailer includes a frame, wheels for carrying the frame during movement along the ground, a tongue for connecting the trailer to a towing vehicle, a pair of parallel rails extending between the ends of the frame, and rollers at the trailing end of the rails for loading a boat carrying frame, horse box or cargo box on the rails.  A pair of side bars are provided on the base of the boat carrying frame, the horse box and the cargo box, such bars resting on the rails when the frame or box is mounted on the trailer.
Patent CA-2013398-A1 (CA)
Title: Multi-unit package particularly for parrallelepiped cartons
Inventor: SAULAS ALAIN
IPC: B65D5/02
Filed: 1990-03-29
Abstract: A package which accommodates a plurality of parallelapiped cartons (B) comprises a sleeve including a top wall panel (14) and a bottom wall panel (18) interconnected by spaced side wall panels (12, 16) thereby forming a tubular structure in which the parallelapiped cartons are accommodated. The tubular structure includes end wall panels (28, 36; 26, 34) which at least partially close the ends of the tubular structure. Corners of the sleeve each formed in part by a side wall panel and an adjacent end wall panel extend substantially the full height of the packaged cartons adjacent to such corners and upper and lower edges of each side wall panel adjacent upper and lower portions of the sleeve corners are each formed with a recess. The recesses of one sleeve are sized and positioned to receive said upper and lower corner portions (C) of a like adjacent sleeve so that the adjacent sleeves can be nested when in flat form.
Patent CA-2013635-A1 (CA)
Title: Apparatus for internally processing slaughtered poultry
Inventor: KOOPS HENDERIKUS
IPC: A22C21/06
Filed: 1990-04-02
Abstract: A B S T R A C T          According to the present invention an apparatus for internally processing slaughtered poultry comprises a processing device and a counterpressure plate engaging the back of the poultry, which plate is essentially movable towards and away from the poultry. As a result the apparatus is suited for use with poultry of different dimensions and different weight. Preferably the counterpressure plate is attached to the piston rods of two cylinder-piston assemblies positioned one above the other.
Patent CA-2015509-A1 (CA)
Title: Method and apparatus for controlling a blower motor in an air handling system
Inventor: SHAH RAJENDRA K
IPC: G05D7/06
Filed: 1990-04-26
Abstract: Apparatus and method for controlling a a motor having a stationary assembly with a plurality of winding stages for carrying motor current and further having a rotatable assembly in driving relation with a blower in an air handling system.  The apparatus provides control of the blower speed over a range of static pressure variations to maintain relatively constant preselected rate of air flow in the system.  The apparatus receives a preselected flow rate signal representing the preselected air flow rate.  A microprocessor, responsive to both the preselected flow rate signal and a speed signal, generates a desired torque signal which is a function of both the preselected flow rate signal and the speed signal.  The desired torque signal is compared to a signal representing motor torque and a comparison signal representing the comparison is generated. An IC control applies a motor voltage to one or more of the winding stages at a time in accordance with the comparison signal and commutatss the winding stages in a preselected sequence to rotate the rotatable assembly.  As a result, the blower is driven by varying the motor torque according to motor speed to maintain substantially constant air flow in the system at the preselected rate substantially independent of variations in the static pressure.
Patent CA-2016492-A1 (CA)
Title: Recovery of platinum group metals (pgm) from acidic solutions by reduction precipitation with sodium borohydride
Inventor: AWADALLA FAROUK T
IPC: C22B11/00
Filed: 1990-05-10
Abstract: ABSTRACT OF THE DISCLOSURE A method is disclosed for the direct recovery of platinum group metals  (PGM)  from thiourea solutions or highly acidic aqueous solutions in general, such as leach solutions resulting from the acid leaching of precious metal bearing material.   The method comprises reduction precipitation of the PGM from solution by alkali metal borohydride (preferably sodium or potassium borohydride) addition thereto at ambient temperature and pressure. The resulting precipitate is readily filtrable to give a product  comprising  high  purity  platinum  group  metal powder.   The barren solution can be recycled to the upstream process.
Patent CA-2016827-A1 (CA)
Title: Pharmaceutical composition for the treatment and prevention of the symptoms of cardiac insufficiency, said composition containing an alpha-stimulant vasoconstrictor as active ingredient
Inventor: CABANES LAURE
IPC: A61K31/135
Filed: 1990-05-15
Abstract: This medicinal composition for the treatment and prevention of the symptoms of heart failure contains, by way of active principle, at least one compound chosen from 2-amino-1-(2,5-dimethoxyphenyl)-1-propanol (methoxamine) and its pharmaceutically acceptable salts, and it is presented in a form which can be administered by inhalation (aerosol or nebulisate). It was demonstrated, in particular, that the administration of methoxamine-HCl by inhalation, at a unit dosage of 10 mg, in the form of a 2% (w/v) solution in physiological saline, decreases airways resistance in subjects suffering from decompensated left ventricular failure, and increases the exertion tolerance of patients suffering from compensated left vetricular failure, whether the latter is of ischemic origin or otherwise.
Patent CA-2018210-A1 (CA)
Title: Process for dark roasting coffee beans
Inventor: KIRKPATRICK STEVEN J
IPC: A23F5/04
Filed: 1990-05-29
Abstract: This invention relates to an improved process for dark roasting coffee beans. The improved process comprises the steps of predrying green coffee beans to a moisture content of less than about 10% by weight, roasting the pre-dried beans to a Hunters L-color of from about 12 to about 20, and cooling the roasted beans. The resulting dark roasted beans have a Hunter  DELTA  L-color of less than about 1.2. The resulting beans are relatively oil-free and very uniformly roasted. Furthermore, these roast beans exhibit less tipping and burning when compared to traditional dark roast coffees.
Patent CA-2019697-A1 (CA)
Title: Lightweight structures and methods for the fabrication thereof
Inventor: GOELA JITENDRA S
IPC: B32B3/12
Filed: 1990-06-22
Abstract: ABSTRACT OF THE DISCLOSURE     A process is disclosed for fabricating lightweight structures out of material such as silicon carbide (SiC) and silicon (Si).  The lightweight structure consists of a core to define the shape and size of the structure. The core is coated with an appropriate deposit such as SiC or Si to give the lightweight structure strength and stiffness and for bonding  the lightweight structure to another surface.     The core is fabricated from extremely thin ribs of appropriately stiff and strong material such as graphite.  First,  a graphite core consisting of an outer hexagonal cell with six inner triangular cells is constructed from the graphite ribs.  The graphite core may  be placed on the back-up side of a SiC faceplate and then coated with SiC to produce a monolithic structure without the use of any bonding agent.  Cores and methods for the fabrication thereof in which the six inner triangular cells are further divided into a plurality of cells are also disclosed.
Patent CA-2024558-A1 (CA)
Title: Thin sanitary napkin having a central absorbent zone and a method of forming the napkin
Inventor: SERBIAK PAUL J
IPC: A61F13/472
Filed: 1990-09-04
Abstract: A thin sanitary napkin is disclosed along with its method of manufacture. The napkin has a liquid-impermeable baffle and an absorbent retained on the baffle. The absorbent has a longitudinally-extending central absorbent zone with a width of less than about 2 inches. The central zone is capable of absorbing at least 20 grams of body fluid which is discharged from the vaginal cavity and deposited onto the napkin. The central zone also has a greater stiffness than adjacent portions of the napkin so as to resist twisting and bunching during use. The sanitary napkin further has a caliper of less than about 5 millimeters.
Patent CA-2025227-A1 (CA)
Inventor: BEZUBIC WILLIAM P
IPC: E06B3/22
Filed: 1990-09-12
Abstract: ABSTRACT OF THE DISCLOSURE A  window  sash   frame which  has   fiberglass reinforced plastic  framing members.   The framing members have  associated  subframes.   The subframes are  joined at their ends so that the ends of the framing members are drawn towards each other to form a window sash frame having tight fitting  corner  joints.    An  associated  method  is also disclosed.
Patent CA-2029026-A1 (CA)
Title: Blood sampling equipment with needle holder and vacuum vial
Inventor: NIELSEN BJORN
IPC: A61M1/00
Filed: 1990-10-31
Abstract: A blood sampling equipment with needle, holder and vacuum vial.                 A B S T R A C T:      When collecting blood samples in sealed systems evacuated specimen vials (6) are used, which with a foremost penetratable cap are inserted into a holder (4) to which a sampling needle (2, 10) is secured; the rear end of the needle extends into the holder and perforates the cap (46) of the specimen vial, thus enabling blood collection through a thin needle by the suction effect from the vial. There is an element of risk attached to using needles with a two-sided protruding needle, and with the invention the extraction needle (10) is only one-sidedly protruding from its holding piece (8), whilst in return the holder (4) is made with a built-in, completely screened needle portion (22) for connection withe the vial (6). Special sealing problems at the changing of specimen vials in the same extraction proce-dure is countered in that the needle portion (22) is displaceably secured in the holder (4, 26) and consti-tutes part of a valve arrangement (26, 28, 34), which is opened by the insertion of the needle portion (22) at the insertion of the vial (6) and is closed at the remo-val of the vial. Furthermore an advantageous design of the vial (6) is disclosed.
Patent CA-2030100-A1 (CA)
Title: Scanning device
Inventor: BLAIS FRANCOIS
IPC: G02B26/10
Filed: 1990-11-15
Abstract: A scanning device has a drive system to angularly reciprocate a rotatable mirror about an axis in a desired waveform in accordance with an excitation signal supplied by a programmable waveform generator. A position sensor generates a signal representing the actual waveform of reciprocation of the mirror, and a microprocessor determines a signal representing the error between the actual waveform and the desired waveform. The microprocessor includes a waveform optimizer that receives this error signal and delivers an excitation correction signal to the waveform generator to adjust the excitation signal from the waveform generator to cause the mirror to have an actual waveform substantially in accordance with the desired waveform.
Patent CA-2035065-A1 (CA)
Title: Fast assembly for flexible pipings
Inventor: COMBEAU ALBERTO
IPC: F16L33/23
Filed: 1991-01-28
Abstract: ABSTRACT     A fast assembly of flexible pipes which can be assembled and disassembled manually, without tools. This assembly consists in a hollow sleeve which has, at least, one anular threaded projection end  succeeded  by an intermediate  tubular  portion,  being  its external  diameter slightly greater than the internal diameter of the pipe to be coupled;  finishing said tubular diameter of  said tubular  portion  in a frustum cone which has a greater  diameter than  said projection;  being each assembly end complemented  by nuts internally  thread having said nuts one its ends  partially blocked by a flap  which has a circular opening in their  center, so that the assembly has certain characteristics in which,  once the set is installed, the stress components are essentially axial in an opposite direction to the liberating of the pipe.
Patent CA-2035334-A1 (CA)
Title: Game board
Inventor: TATARYN DAVID
IPC: A63F7/07
Filed: 1991-01-31
Abstract: ABSTRACT OF THE DISCLOSURE A game board has a playing surface defined by sides and ends extending up from the playing surface.  A goal is positioned at each end and a number of pegs are posi-tioned on the playing surface at predetermined posi-tions.  A coin, or similar member, is caused to slide over the playing surface by flicking with a finger.  The coin drops through an aperture behind each goal when a goal is scored.  The width of the goal can be varied to vary the skill required.
Patent CA-2035371-A1 (CA)
Title: Improperly inserted battery detector
Inventor: SISSELMAN RONALD
IPC: G08B17/00
Filed: 1991-01-31
Abstract: Abstract of the Disclosure A deflectable battery retaining member in a battery powered unit blocks the improper insertion of a battery into the unit.  Further, the same member in the absence of a battery inhibits engagement of the cover of the unit thereto providing a visual indicator of the missing battery.
Patent CA-2035412-A1 (CA)
Title: Double walled drill pipe electrical conductor
Inventor: FELD DAGOBERT
IPC: E21B17/18
Filed: 1991-01-31
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention discloses an apparatus for drilling holes in various ground formations using a drill string including an inner flow cavity surrounded by an inner pipe and an outer pipe surrounding the inner pipe to form an outer flow cavity.  In order to ensure electrical data transmission in a wear-free manner and to ensure easy installation, the inner and outer pipes are designed as mutually insulated electrical conductors to transfer measurement and control signals between the ground surface and the bottom of the hole during drilling.  The pipes are braced against each other by  electrically nonconducting  spacers  and  are  connectable  to electrically operated measurement and control devices.
Patent CA-2039841-A1 (CA)
Inventor: MOHAMMED NAOUI
IPC: F16L11/00
Filed: 1991-04-05
Abstract: ??ECIS La grue pompe à béton permet de faire couler le béton pour faire des constructions à grandes largeurs. Le principe consiste à envoyer le béton malaxé à une unité de pompage qui l'envoie sous pression dans une conduite métallique située dans la partie centrale de la colonne verticale de la grue. Le béton arrive au point ? (Voir vue B) continue son chemin dans la conduite métallique horizontale jusqu'au point ?, suit le flexible ? qui passe dans la gorge de la poulie, arrive au coude métallique ? et descend en suivant le flexible de coulée ? le flexible ? est manoeuvrable en translation. Pour faire couler le béton, on utilise souvent les grues à cuve. L'avantage de la grue pompe à béton par rapport à la grue à cuve est le gain de temps. Pendant l'utilisation de la grue à cuve, on perd beaucoup GRUE A CUVE de temps mort: - Temps de descente de la cuve, temps de remplissage, temps de montée et le temps de manipulation de la flèche horizontale. L'avantage de la grue pompe à béton par rapport à la flèche distributrice articulée est la longueur de la portée de coulage qui est importante. Remarque: On peut utiliser une même grue pour soulever des charges et pour faire couler le béton de la manière citée ci-haut. Cette invention consiste donc à ajouter un rôle supplémentaire à la grue monte-charge.
Patent CA-2040667-A1 (CA)
Title: Manufacture of metal tubes
Inventor: CLARK JACK
IPC: B23K1/06
Filed: 1991-04-17
Abstract: ABSTRACT                                (Figures 2 and 3 ) MANUFACTURE OF METAL TUBES    An apparatus for forming metal tubes is shown in which a metal strip 2' having a brazing wire 1 bonded to  an edge  portion  thereof  passes  through  the apparatus and is formed by a combination of rollers 17, 17', 19, 19' and dies 15, 24 into a shape defining a tube.  A frictional wheel 27 bonds together the two edge portions of the shape defining a tube.
Patent CA-2042919-A1 (CA)
Title: Valve for controlling the flow of pressurised fluid
IPC: F16K31/64
Filed: 1991-05-21
Abstract: Abstract In a valve for controlling the flow of pressurised fluid having a piston (4) and a valve seat (3), the piston (4) rests, in the closed position, with a front face (17) against a front face (18) of the valve seat (3).  When a pressurised fluid is supplied to the valve inlet, a leakage flow occurs between the front faces (17, 18).  At the same time, the pressurised fluid acts upon a portion of the piston surface (21) facing away from the front face (17) of the piston (4).  In order to permit reliable opening or closing of the valve, while having a simple design, it is ensured that an insert (19) that is deformable, by supplying a physical parameter, in such a manner that the gap between the front faces (17, 18) is enlarged is arranged in one of the front faces (17, 18) of the valve seat (3) and the piston (4), and that a spring (16) is provided that presses against the piston (4) in the direction towards the closed position.
Patent CA-2044889-A1 (CA)
Inventor: BRAUN STEPHEN A
IPC: A01D34/64
Filed: 1991-06-18
Abstract: ABSTRACT    A mower deck height adjustment mechanism having a frame coupled to a rear base unit having driven wheels.  Ground engaging wheels support the frame, and a deck is coupled to the frame.  A crank handle is coupled to a transverse bar that is fixed to a lower parallel member.  The operator turns the crank handle to pivot the bar and lower parallel member to thereby raise and lower the front of the deck.  A bell crank couples the rear of the deck to the crank handle.  The bell crank is carried by and shifts vertically with a connecting member supported by the front of the deck.  As the front of the deck shifts vertically, the connecting member, bell crank, and rear portion of the deck also shift vertically.  The bell crank is also operatively coupled with the bar for pivoting therewith, which also causes the rear portion of the deck to shift vertically.